ISSN:
1573-5117
Keywords:
Chondrostoma nasus
;
radiotelemetry
;
habitat use
;
regulated River
;
seasonal
;
home-range
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Due to a massive population decline of nase (Chondrostoma nasus L.) in the river Aare (Switzerland), a radiotelemetry study was designed to detect the habitat use of this endangered species. Although big individual differences in behaviour occurred for adult nase, habitat preferences for runs with currents between 0.5 and 1 m s-1, coarse sediments and depths between 1 and 2 m could be shown. The fish used well defined home-ranges for certain time periods and migrations were mainly found in correlation with spawning or seasonal changes in discharge and temperature. Seasonal and daily differences in home-range size and habitat preferences were discussed in relation to habitat structure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1017005523302
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